The Yankees began to put the finishing touches on their Opening Day roster yesterday by choosing Shawn Kelley for a bullpen spot over David Aardsma, who was designated for assignment.

According to Andy McCullough of the Newark Star-Ledger, Yankees manager Joe Girardi said that Aardsma “didn’t really fit” with the team’s bullpen, as they wanted someone who could provide multiple innings at a time. Kelley threw more than one inning in 12 of his 47 appearances with the Mariners last season.

Aardsma has only pitched in one game in the majors over the past two seasons following a hip injury and Tommy John surgery, but he had a 3.52 ERA and 7/2 K/BB ratio over 7 2/3 innings this spring and finally appears to be healthy. The 31-year-old right-hander posted a 2.90 ERA and 69 saves with the Mariners from 2009-2010, so someone figures to take a chance on him. He’s set to make $500,000 in 2013.

DFA’ing him they have a week to entertain trade offers instead of exposing him to waivers so the objective likely is to trade him, It’s not like he’s being sent to the waiver wire right now. He’s just barely been DFA’d, which gives them a good week to field interest and decide what they want to do with him based on interest they receive.